Home / 74,153.46-102,331.90-40,162.02

Finding the Fourth Proportional to 74,153.46, 102,331.90 and 40,162.02

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Solution

The fourth proportional to 74,153.46, 102,331.90 and 40,162.02 is: 55,423.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,153.46 : 102,331.90 = 40,162.02 : x
  2. Step 2: Convert to fraction form
    74,153.46/102,331.90 = 40,162.02/x
  3. Step 3: Cross multiply
    74,153.46x = 102,331.90 × 40,162.02
  4. Step 4: Simplify right side
    74,153.46x = 4,109,855,814.44
  5. Step 5: Solve for x
    x = 4,109,855,814.44/74,153.46
  6. Step 6: Final answer
    x = 55,423.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.